10 citations · 10 across the 10 of their papers we have counts for
11 papers
Pressure-induced superconductivity in a bilayer metal
Tomoya Sano, Satoshi Ikegaya, Shingo Kobayashi +1
We propose a model that explains the mechanism of pressure-induced superconductivity in a bilayer metal. Four types of pair potentials are assumed for a Cooper pair consisting of t…
Nonlocal Cooper pairs in finite topological superconductors and their relation to Majorana nonlocality
Hiroto Mizoguchi, Yutaro Nagae, Yasuhiro Asano +1
We identify two fundamental properties of the Gor'kov Green's function of finite one-dimensional topological superconductors. In the low-frequency (low-energy) regime, the normal a…
Reentrant Superconductivity in Zeeman Fields
Tomoya Sano, Kota Tabata, Satoshi Ikegaya +1
We propose a theoretical model for a superconductor that exhibits the reentrant superconductivity in Zeeman fields. The Bogoliubov-de Gennes Hamiltonian includes three vectors in s…
Low-temperature anomaly and anisotropy of critical magnetic fields in transition-metal dichalcogenide superconductors
Tomoya Sano, Kota Tabata, Akihiro Sasaki +1
We clarify why spin-singlet superconductivity persists in monolayer transition-metal dichalcogenides even in high magnetic fields beyond the Pauli limit. The phenomenon called Isin…
Exceptionally large winding number of a finite-size topological superconductor
Satoshi Ikegaya, Shingo Kobayashi, Yasuhiro Asano
We study finite-size-induced topological phenomena in unconventional superconductors. Specifically, we focus on a thin film with a persistent spin texture, fabricated on a high-$T_…
Finite-momentum superconducting states due to odd-frequency Cooper pairing correlations
Takumi Sato, Satoru Hayami, Shingo Kobayashi +1
This paper discusses the origin of a nonuniform superconducting state in which Cooper pairs have a small but finite center-of-mass momentum. We analyze the instability of the norma…
Noise-to-current ratio divergence as a fingerprint of dispersing Majorana edge modes
Leo Katayama, Andreas P. Schnyder, Yasuhiro Asano +1
The definitive detection of Majorana modes in topological superconductors is a key issue in condensed matter physics. Here we propose a smoking-gun experiment for the detection of…
Anomalous proximity effect of a spin-singlet superconductor with a spin-orbit interaction
Jaechul Lee, Satoshi Ikegaya, Yasuhiro Asano
The anomalous proximity effect of a spin-triplet -wave superconductor has been known as a part of the Majorana physics and is explained by the penetration of zero-energy states…
Thermoelectric effect in a superconductor with Bogoliubov Fermi surfaces
Tomoya Sano, Takumi Sato, Akihiro Sasaki +3
We study theoretically the thermoelectric effect in a superconducting state having the Bogoliubov-Fermi surfaces which stays in a thin superconducting layer between a conventional…
Oscillating-charged Andreev Bound States and Their Appearance in UTe
Satoshi Ando, Shingo Kobayashi, Andreas P. Schnyder +2
Surface Andreev bound states, including Majorana bound states in topological superconductors, are typically charge neutral. In this work, we demonstrate the emergence of unconventi…
Parity Violation in a Single Domain of Spin-Triplet Sr2RuO4 Superconductors
H. Nobukane, K. Inagaki, K. Ichimura +8
We observed an unconventional parity-violating vortex in single domain Sr2RuO4 single crystals using a transport measurement. The current-voltage characteristics of submicron Sr2Ru…